• State TI Thinks Resolved
  • Locked Locked
  • Replies 6 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 810 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

Linux/DRV2624: We need Linux driver for DRV2624

Linux/DRV2624: waveform binary assembling/disassembling method

Wu Chase
Prodigy 30 points
Part Number: DRV2624

Tool/software: Linux

Hi sirs,

I'm Chase from Google TW SEG and I focus on haptics SW part.
In the DRV2624 spec(SLOS893B –SEPTEMBER 2014–REVISED SEPTEMBER 2016), I found that we could add some pre-defined waveforms to the haptics chip.
May I know is there any application manual/example to show the detail steps for how to assemble/disassemble waveform binary?
8.6.9 Waveform Setup and Playback
Playback of a haptic effect can occur in RTP mode or by using the waveform sequencer.
 
Many thanks,
Chase
  • 0
    TI__Mastermind 20085 points

    Hi Wu

    Welcome to E2E, thanks for the interest in our devices.
    My colleague will be responding tomorrow with further information.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer

  • 0
    TI__Guru** 109395 points
    Hi Wu,

    There are details about the waveform format and setup as well as the waveform sequencer on the data sheet. Specifically on page 31. Have you read this already?

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators
  • 0 in reply to Ivan Salazar
    Prodigy 30 points

    Hi Ivan,

    Yes, I have already read this part.

    8.6.9 Waveform Setup and Playback Playback of a haptic effect can occur in RTP mode or by "using the waveform sequencer".

    In 8.6.9.2 Loading Data to RAM part:
    The DRV2624 device contains 1 kB of integrated RAM to store "customer waveforms".

    I wants to know how to package the customer waveforms into a bin file and use this function "drv2624_firmware_load" to load those customer waveforms.
    Then, I can use waveform sequencer to trigger those customer waveforms by index.



    Reference code:

    /* drv2624_firmware_load: This function is called by the
    * request_firmware_nowait function as soon
    * as the firmware has been loaded from the file.
    * The firmware structure contains the data and$
    * the size of the firmware loaded.
    * @fw: pointer to firmware file to be dowloaded
    * @context: pointer variable to drv2624 data
    */
    static void drv2624_firmware_load(const struct firmware *fw, void *context)


    Many thanks,

    Chase

  • 0 in reply to Wu Chase
    TI__Guru** 109395 points
    Hi Chase,

    You can create the waveform file by using Haptic Control Console. You can export the waveform into binary file using the RAM Manager.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators
  • 0 in reply to Ivan Salazar
    Prodigy 30 points

    Hi Ivan,

    Thanks for you reply.

    May I know is there a version that support it runs in window 10 OS or a script let me run in linux OS?

    Many thanks,

    Chase

  • 0 in reply to Wu Chase
    TI__Guru** 109395 points
    Hi Chase,

    Unfortunately HCC is only supported on Win7 at this moment. We're currently working with our SW team to get this to work on Win10.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators